2-2 Model 3750 Condensation Particle Counter
Figure 2-1
Mounting the fill bottle bracket
Filling the Fill Bottle
Filling the Fill Bottle with Butanol
The CPC uses reagent-grade n-butyl alcohol (butanol) as the working fluid
for particle growth. Pour the butanol into the Fill Bottle to at least one-third
full. Because of the leak-tight fittings and internal solenoid valve, liquid will
not flow into the CPC until the connections are made, the instrument is
switched on, and warm-up cycle is complete.
Note: Due to shipping regulations on flammable materials, n-butyl alcohol
(butanol) is not supplied with the CPC. Butanol may be purchased
from scientific chemical supply houses. Reagent grade of butanol is
required.
Connecting the Butanol Drain Bottle
A drain bottle should be connected to the Liquid Drain port at the back
panel of the CPC. The drain bottle collects butanol drained from the CPC
prior to transport and holds condensed water and butanol removed from
the condenser when the water removal system is turned on (see note
below).
Note: The water removal system will not work without a drain bottle
connected to the drain port.
Butanol is flammable. Butanol is also potentially toxic if inhaled. Use
butanol only in a well-ventilated area. If you smell butanol and
develop a headache, or feel faint or nauseous, leave the area at
once. Ventilate the area before returning.